SP3232EBCY-L-TR Datasheet, PDF (5/24 Pages) Exar Corporation – True +3.0V to +5.5V RS-232 Transceivers

PIN FUNCTION
PIN NUMBER
SP3222EB
SP3232EB
NAME
FUNCTION
SOIC
SSOP
TSSOP
SSOP
TSSOP
NSOIC
WSOIC
QFN
EN
Receiver Enable. Apply Logic LOW for normal operation.
Apply logic HIGH to disable the receiver outputs (high-Z state)
1
1
-
-
C1+ Positive terminal of the voltage doubler charge-pump capacitor 2
2
1
15
V+ +5.5V output generated by the charge pump
3
3
2
16
C1- Negative terminal of the voltage doubler charge-pump capacitor 4
4
3
1
C2+ Positive terminal of the inverting charge-pump capacitor
5
5
4
2
C2- Negative terminal of the inverting charge-pump capacitor
6
6
5
3
V- -5.5V output generated by the charge pump
7
7
6
4
T₁OUT
T₂OUT
R₁IN
R₂IN
R₁OUT
R₂OUT
T₁IN
T₂IN
GND
RS-232 driver output.
RS-232 driver output.
RS-232 receiver input
RS-232 receiver input
TTL/CMOS receiver output
TTL/CMOS receiver output
TTL/CMOS driver input
TTL/CMOS driver input
Ground.
15
17
8
8
14
16
9
9
13
15
10
10
12
13
11
12
16
18
14
12
7
5
13
11
8
6
12
10
9
7
11
9
10
8
15
13
V_CC +3.0V to +5.5V supply voltage
17
19
Shutdown Control Input. Drive HIGH for normal device opera-
SHDN tion. Drive LOW to shutdown the drivers (high-Z output) and
18
20
the on-board power supply
16
14
-
-
N.C. No Connect
- 11, 14
-
-
Table 1. Device Pin Description
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7000• www.exar.com
5
SP3222EB/SP3232EB_106_022316